<div id="search-component">
    <h4>Search Heroes</h4>
    <input #searchBox id="search-box" (input)="searchHeroes(searchBox.value)" />
    <ul class="search-result">
        <li *ngFor="let hero of heroes$ | async">
            <a routerLink="/detail/{{hero.id}}">{{hero.name}}</a>
        </li>
    </ul>
</div>